Horn for talking-machines.



Patented Sept. 9, I902.

E. A. HEYL.

HORN FOR TALKING MACHINES. (Application filed July 11, 1900. Renewed Aug, 4, 1902.)

(No Model.)

THE nomqus PETERS co. muruumm WASHINGTON, n. c.

UNITED STATES PATENT UEEIQ EDVIN A. HEYL, OF PHILADELPHIA, PENNSYLVANIA.

HORN FOR TALKiNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 708,810, dated September 9, 1902. Application filed July 11.1900. Renewed August 4,1902. serial No. 118,333. (No model.)

ing specification and accompanying drawtugs.

My invention consists of a born for a talking-machine having novel features, as Will be claimed.

Figure 1 represents a central longitudinal section of a horn constructed in accordance with my invention and taken on line ,2 of Fig. 2. Fig. 2 represents an end elevation thereof. Fig. 3 represents a transverse section on line a: .90, Fig. 1. Fig. 4 represents a transverse section taken on line 1 Fig. 1. Fig. 5 represents a transverse section of another embodiment of my invention, taken on line .2 .2' of Fig. 6. Fig. 6 represents a longitudinal section thereof.

Similar letters of reference indicate corresponding parts in the figures.

Referring to the drawings, A designates a horn which is of ordinary construction and provided with a nozzle B, by means of which it is attached to the tube of the talking instrument. (Shownin dotted linesin Fig 1.) By a series of. instrumentalities contained within the horn and situated between said nozzle l5 and the large or flaring end thereof I am enabled to not only modify the vibration of the horn itself, but to so control the sound-waves produced by the talking-machine that the human voice making the record is naturally reproduced devoid of the usual harsh and metallic qualities, so that it is even possible for one to recognize the reproduction of his own voice, which, as far as I am informed, has not been successfully attained heretofore. In the embodimentof my invention illustrated and which I have successfully operated the said horn is provided at its small end with a screen or reticulated plate 0, upon the side of which is secured the palate D, the latter being flexible and fastened at its outer end asa flap and resting freely against the face of said screen or reticulated plate 0, said palate beingofasoundnon-producing nature. Near said nozzle are a plurality of Wings E, conveniently radiating from the axial line of the horn and secured at their outer ends to a block F, that is mounted upon a cone G. Near the outer or larger end of the horn is a sounding-plate H, fastened therein and comprising an outer ring K and an inner ring .I, joined by radial spokes L. Extending from the cone Gr and the sounding-plate II and firmly connected therewith are a plurality of blades M, the shape of which is shown in Fig. 1 and which extend longitudinally of the born, but in radial planes coincident with said spokes L, and engage at their backs with the inner surface of the horn. For a greater portion of their length these blades M extend along the inner face of the horn, but are deflected inwardly, as shown at N, at one end and fastened to the cone G, while at their opposite ends they are provided withinwardly-extending enlargements P, extending from the outer to the inner ring of the sounding-plate, as shown in Fig. 1, said enlargements P being fastened to the said rings and to the spokes L, against which they abut as braces for the horn. As before stated, the vibrations of the hornitself are modified, and this is secured by arranging the said blades M and sounding-plate K, which serve to brace the walls of the horn and to modify the character of the vibrations thereof, so as to eliminate this former objectionable feature in talkingmachine horns, and also causing clearer enunciation of the sound directed from the born.

I have found that by employing the instrumeutalities above described the human voice is more naturally produced, which, far as I am informed, is because the soundwaves entering the horn are so controlled that the harsh and metallic reproduction is avoided. This seems to be due to the fact that I arrange within the horn instrumentalities that divide the volume of the soundwaves, which seems to preventaugmentation of the volume of the sound produced and to retain to a greater degree its natural character, it being noticed that the sound-waves passing through the screen or reticulated plate are softened and rounded to a certain extent by the palate D and then deflected by the wings E and spread by cone G. 'lhoy are also deflected through the openings between the two rings and the central ring.

In Figs. 5 and 6 wings are situated on both sides of the screenC, the Wings E being ar ranged the same as heretofore described beyond the outerside of the screen C, while the wings E are arranged beyond the inner side of the said screen 0 and within the nozzle 13.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A horn of the character stated having a sound-non-producing palateof flexible material in the interior thereof.

2. A horn of the character stated having on the interior thereof a plate of reticulated material and a flexible palate of sound-nonproducing material adjacent thereto.

3. A horn of the character stated having therein a plate of reticulated material, a sound-non-producing palate of flexible material, and separated wings, said palate being forward of said plate and said wings forward of said palate.

4. A horn of the character stated having therein separated blades which engage at their backs with the interior surface of the horn and extend in the longitudinal direction thereof.

5. In a horn of the character specified, a plurality of longitudinal blades, a support for one end of said blades, and a plurality of wings carried by said support.

6. A horn of the character stated having therein separated blades which engage at their backs with the interior surface of the horn in the longitudinal direction thereof, and an annulus connected with said blades and horn.

7. A horn of the character specified, provided with a reticulated plate at its small end, a flexible palate secured against said plate, wings secured within the small end portion of the horn, a cone in the rear of said wings, blades extending from said cone longitudinally along theinterior face of the horn and provided with enlarged outer ends, and a soundingplate secured within the large end of thehorn and against the outer enlarged ends of said blades.

8. In a horn of the character specified, a plurality of longitudinal blades secured therein and provided with enlarged inwardly-extending ends.

9. In a horn of the character'specified, a plurality of longitudinal blades, one of the ends of which is enlarged, and theother ends being deflected.

10. In a horn of the character specified, longitudinal blades extending along the inner face of the horn, one of the ends of which is enlarged, and the other ends being deflected inwardly and suitably supported.

EDWIN A. HEYL.

WVitnesses:

JOHN A. WIEDERsHEn/t, O. D. MOVAY. 

